Congenital Hypoplasia of the Left Main Coronary Artery Treated with Off-Pump Coronary Artery Bypass Grafting

Ken Yamanaka	Tatsuhiko Komiya	Hiroshi Tsuneyoshi
Takeshi Shimamoto

（Department of Cardiovascular Surgery, Kurashiki Central Hospital＊, Kurashiki, Japan）

We encountered left main coronary artery hypoplasia in a 14-year-old boy. He had a history of syncope after exercise. Computed tomography revealed hypoplasia of the left main coronary artery and the syncope on exertion was diagnosed as due to myocardial ischemia. We performed off-pump coronary artery bypass（OPCAB）graft using the left internal thoracic artery. The postoperative course was uneventful and chest symptoms were not recognized in daily life. Left main coronary artery hypoplasia is rare, but is associated with adverse cardiac events, including sudden cardiac death. In cases like this, coronary artery bypass graft is indicated.

 

Jpn. J. Cardiovasc. Surg. 45:73-75（2016）

Keywords：hypoplasia of LMT;myocardial ischemia;OPCAB;LITA